循环流化床气固两相间传热特性的实验研究  

An Experimental Study of Gas/Solid Interphase Heat Transfer Characteristics of a Circulating Fluidized Bed

作　　者：郑守忠[1] 陆丰[1] 张永廉[1] 蔡崧[1] 

机构地区：[1]东南大学

出　　处：《热能动力工程》1997年第4期285-288,共4页Journal of Engineering for Thermal Energy and Power

摘　　要：在小型实验台上用双热电偶测温法测定床层温度。实验表明：气固间传热主要在循环床下半部进行；同时气体表观流速提高、颗粒循环率增大及颗粒粒径减小有利于气固两相间的传热，获得了相应的无因次方程。On a small sized test stand and by using a dual thermocouple temperature measuring method determined is the temperature of a fluidized bed layer The test results show that the gas/solid interphase heat transfer mainly takes place in the lower half portion of the circulating bed The increase in gas apparent flow speed,the enhanced circulating rate of particles and the decrease in particle diameter will be beneficial to the gas/solid interphase heat transfer Also obtained is a corresponding dimensionless equation

关 键 词：循环流化床 气相 固相 传热 实验 

分 类 号：TK229.66[动力工程及工程热物理—动力机械及工程]